Mickey Kat is the oldest cat in the Kat family, which appeared in the Pets expansion pack for The Sims 2. His owner is Tara Kat. His memories suggest that he was adopted by Tara, who soon adopted Samantha and Faline after him. The family bio implies that Mickey and Samantha's original owner may have been Tara's mother.

His learned commands are Come Here and Speak. His personality is Genius-Doofus, Aggressive-Cowardly, Pigpen-Finicky, Lazy, and Friendly.

Technically, Mickey Kat should be female, as he is calico and that type of cat is almost always female due to the coat color linked to XX chromosomes. Male specimens exist, they are very rare and carry XXY chromosomes.